MYSQL_TABLE query %s lookup

[postfix]

When postfix looks up an address it repeats the query for each section 
of an address.

    %s = u...@example.com
    %s = example.com
    %s = com
Is there a way on a single check_recipient_access to tell postfix to 
only check the full address, only do the query once?

    %s = u...@example.com
    [Stop, no more queries]